I think this is the closest you can get to American folk horror.
Folk horror is a genre of b-movies most often focused on Nordic pagan traditions or new age occultism. Midsommer, which I would consider “elevated” folk horror, notably lingers on alt-right election banners on the drive towards the murderous Swedish cult. On the other hand, Green Room’s Nazi villains are firmly NOT connected to the land, religion, or any ancient tradition. Neonazism is not an ideology that slowly…